Yes, there are many. You can search on fanfiction platforms like FanFiction.net or Archive of Our Own. Look for tags that exclude lemon or adult content, such as 'Gen' (general) or 'Friendship'. Some authors focus on the characters' adventures, growth, and relationships in a non - sexual way.
I recommend " My Two-Dimensional Goddess Wife ". This is a light novel, a derivative doujinshi novel. The female lead is Hiroo Takasaka, and her sister is Yukino Yukino. There are many other anime goddesses in this novel. The OP will definitely like them. I hope you like my recommendation.😗
One idea could be that Naruto and Yukino team up to train a new generation of ninjas. They combine their different skills and teaching methods to bring out the best in the young ones.
One great Sting and Yukino fanfiction is 'A Bond Beyond Guilds'. It delves deep into their relationship, showing how they support each other through various challenges in the magical world. The story has a great plot that keeps you hooked from start to finish.
Yukino's character in " Spring Things " was an independent, strong, and ambitious female character. She was a diligent student in school and had a high pursuit of academics and knowledge. At the same time, she was also a person with principles and a bottom line. She was very firm on matters of principle and morality.
In terms of interpersonal relationships, Yukino's personality was more introverted and she was not good at expressing her feelings, but she also had strong emotional needs deep in her heart. She had high standards for her appearance and figure and often boasted and emphasized her strengths to attract others 'attention. She also had a strong sense of self-esteem and self-protection. She would not easily let others approach or hurt her.
Snow was an independent female character with a complicated heart. She also had a strong sense of morality and principles. She was a very important character in Spring Things.
A prevalent theme is also about loyalty. In these fanfics, Sting and Yukino show loyalty to each other, whether it's in the face of danger or in dealing with guild politics. For example, there are stories where Sting defends Yukino against false accusations within the guild. And sometimes, the theme of self - discovery is also present. As they interact, they learn more about themselves and their feelings for each other.
Another theme could be adventure. They are both part of the Fairy Tail universe, so fanfictions may involve them going on quests together, facing challenges side by side, and growing closer through these experiences.
In the fanfiction, perhaps they face some challenges after getting married. Maybe there are issues with integrating their different magical abilities and how they use them in a combined way. But through love and understanding, they overcome these obstacles and their relationship becomes even stronger.
Another theme is adventure. Many fanfics put them on exciting adventures together, which tests their relationship and makes it stronger. They could be exploring a mysterious magical realm or facing a powerful enemy.
Another theme is the exploration of their personalities. Since both Hachiman and Yukino have complex personalities, fanfictions may focus on how these personalities interact and complement each other. It could be about how Hachiman's cynical view and Yukino's cold exterior start to break down in each other's presence.